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Knee replacement clinicians in Los Angeles, California

CMS lists 70 clinicians with a primary specialty of Orthopedic Surgery, Sports Medicine, or Hand Surgery who have billed Medicare for at least one knee replacement and practice in Los Angeles, California (details below).

Knee replacement volume

Clinician Knee replacements billed Percentile rank
Andrew Yun, MD 484 99%
Harpreet Bawa, MD 225 99%
Jaime Hernandez, MD 171 98%
Daniel Oakes, MD 165 98%
Erik Zeegen, MD 124 95%
Kevin Pelton, MD 122 94%
Sean Rajaee, MD 121 94%
Robert Klapper, MD 112 93%
Thomas Donaldson, MD 100 91%
Yung Han, MD 97 91%
Nathanael Heckmann, MD 74 85%
Andrew Spitzer, MD 67 83%
Stephen Owens, MD 59 79%
Alexandra Stavrakis, MD 58 79%
Donald Longjohn, MD 54 77%
Thomas Zink, MD 52 76%
Erik Dworsky, MD 47 73%
William Long, MD 45 72%
Kevin Ehrhart, MD 42 69%
Steve Kwak, MD 38 66%
David Barba, MD 36 64%
Jonathan Saluta, MD 32 61%
Farzin Kabaei, MD 29 58%
Rebecca Burr, MD 28 57%
Purav Brahmbhatt, MD 25 53%
David Golden, MD 23 51%
Parke Hudson, MD 22 50%
Mark Wu, MD 22 50%
Alexander Christ, MD 21 48%
Joseph Cooper, MD 21 48%
Jay Lieberman, MD 18 44%
Loren Geller, MD 15 39%
Guy Paiement, MD 15 39%
Gurkirat Jawanda, DO 14 37%
Charles Moon, MD 14 37%
Jennifer Hertz, MD 13 35%
Ryan Morgan, MD 12 33%
Suketu Vaishnav, MD 12 33%
Daniel Driscoll, MD 11 31%
Brian Solberg, MD 11 31%
Abiram Bala, MD 1-10 31% or below
Sevag Bastian, MD 1-10 31% or below
Michael Bergen, MD 1-10 31% or below
Sarah Blumenthal, MD 1-10 31% or below
Leah Cyran, MD 1-10 31% or below
Joseph Femino, MD 1-10 31% or below
Mark Ganjianpour, MD 1-10 31% or below
Michael Gerhardt, MD 1-10 31% or below
Cody Hansen, MD 1-10 31% or below
Hyunwoo Kang, MD 1-10 31% or below
Chang Kim, MD 1-10 31% or below
Robert Klenck, MD 1-10 31% or below
Alan Lee, MD 1-10 31% or below
David Lee, MD 1-10 31% or below
Jai Lee, MD 1-10 31% or below
Nicole Levine, MD 1-10 31% or below
Michael Lim, MD 1-10 31% or below
Carol Lin, MD 1-10 31% or below
Matthew Longacre, MD 1-10 31% or below
Sara Orr, MD 1-10 31% or below
Sangdo Park, MD 1-10 31% or below
Rajan Patel, MD 1-10 31% or below
Hemant Reddy, MD 1-10 31% or below
Gilbert Roc, MD 1-10 31% or below
Ishan Shah, MD 1-10 31% or below
Tae Shin, MD 1-10 31% or below
Theodore Shybut, MD 1-10 31% or below
Garrett Sohn, MD 1-10 31% or below
Ekaterina Urch, MD 1-10 31% or below
David Wang, MD 1-10 31% or below

Sorted by the number of knee replacements billed to Medicare, highest first, not by quality or skill. CMS suppresses counts between 1 and 10 to protect patient privacy and publishes the range instead.

Reported in previous releases

CMS does not report a knee replacement volume for these clinicians in the August 18, 2026 release. Their pages show figures from earlier releases.

Understanding CMS Data

CMS's "Knee replacement" category combines specific billing codes for knee replacement surgery to calculate the number of times each clinician billed Medicare for a "Knee replacement." These include first-time knee replacement, partial knee replacement, and revision of a previous knee replacement. CMS reports only procedures that clinicians billed to Original Medicare and Medicare Advantage. Therefore, CMS's procedure volume data does not include procedures that clinicians may have performed on patients who have other health care coverage (e.g., commercial insurance, self-pay, or the VA). Billing variation and coding errors can also affect CMS's data. Therefore, the number of procedures that CMS reports for a clinician may be higher or lower than the actual number of knee replacements a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Orthopedic Surgery, Sports Medicine, or Hand Surgery (as reported to Medicare) are presented.

Source: Centers for Medicare & Medicaid Services (August 18, 2026 release).